Cita APA (7th ed.)

Sharma P. Pete & Emmerson P. Paul. (2008). The Business. Pre-Intermediate. Teacher's Book. Oxford, Macmillan, 2008.

Cita Chicago (17th ed.)

Sharma P. Pete i Emmerson P. Paul. The Business. Pre-Intermediate. Teacher's Book. Oxford, Macmillan, 2008, 2008.

Cita MLA (9th ed.)

Sharma P. Pete i Emmerson P. Paul. The Business. Pre-Intermediate. Teacher's Book. Oxford, Macmillan, 2008, 2008.